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import torch
from torch_geometric.data import Data
from torch_geometric.transforms import RandomScale
def test_random_scale():
assert str(RandomScale([1, 2])) == 'RandomScale([1, 2])'
pos = torch.tensor([[-1.0, -1.0], [-1.0, 1.0], [1.0, -1.0], [1.0, 1.0]])
data = Data(pos=pos)
data = RandomScale([1, 1])(data)
assert len(data) == 1
assert data.pos.tolist() == pos.tolist()
data = Data(pos=pos)
data = RandomScale([2, 2])(data)
assert len(data) == 1
assert data.pos.tolist() == [[-2, -2], [-2, 2], [2, -2], [2, 2]]
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